A Galaxy That Was Once a Quasar Is Likely to

question 4

Multiple Choice

A galaxy that was once a quasar is likely to

• A) have burned all its fuel by now and be dark.
• B) now be a dwarf irregular.
• C) have a black hole at its nucleus.
• D) be less than 5 billion years old.
• E) still be a quasar.

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Definitions:

Imports

Goods and services brought into a country from abroad for sale.

Exports

Domestically produced goods and services sold in other countries.

Comparative Advantage

A theory in economics that suggests a country should specialize in producing and exporting goods in which it has a lower opportunity cost than its trading partners.

Absolute Advantage

The ability of an entity to produce a good or service more efficiently than its competitors when using the same amount of resources.